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Shaped Films of Ionotropic Hydrogels Fabricated Using Templates of Patterned Paper
Author(s) -
Bracher Paul J.,
Gupta Malancha,
Whitesides George M.
Publication year - 2009
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200801186
Subject(s) - ionotropic effect , self healing hydrogels , template , materials science , nanotechnology , strips , range (aeronautics) , interlocking , composite material , polymer chemistry , chemistry , mechanical engineering , biochemistry , nmda receptor , receptor , engineering
Patterned paper wet with multivalent cations can template the production of films of ionotropic hydrogels in topologically complex shapes such as Möbius strips and interlocking rings (see figure). The films have lateral dimensions as low as 2mm, and range in thickness from 0.2 to 1.3mm. The films are magnetically responsive when cross‐linked by Ho 3+ or Gd 3+ .